EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Factors and Multiples

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

Find the product of LCM and HCF of
{25,15}

(i)

373
(ii)

375
(iii)

374
(iv)

377
(v)

376

Question 2

2.

Which of the following numbers is divisible by 8?

(i)

5649
(ii)

5647
(iii)

5646
(iv)

5650
(v)

5648

Question 3

3.

Which of the following numbers is divisible by 6?

(i)

7823
(ii)

7822
(iii)

7826
(iv)

7825
(v)

7824

Question 4

4.

Find all common factors of 39 and 21

(i)

{1,3,21}
(ii)

{1,7}
(iii)

{1,39}
(iv)

{1,3}
(v)

{1,3,13}

Question 5

5.

Find the LCM of
{960,360,180}

(i)

2881
(ii)

2879
(iii)

2878
(iv)

2880
(v)

2883

Question 6

6.

Find the H.C.F of
30
46

,

24
36

(i)

2
207
(ii)

3
415
(iii)

3
413
(iv)

1
138
(v)

1
207

Question 7

7.

The multiples of 10 =

(i)

{10,20,30,40,50,60}
(ii)

{10,20,30,40,50,60,21,29}
(iii)

{10,20,30,60,11,61}
(iv)

{10,20,30,50,60,29}
(v)

{10,20,30,40,50,60,39}

Question 8

8.

Find the H.C.F of
4
14

,

10
14

,

16
10

(i)

2
35
(ii)

0
(iii)

1
36
(iv)

1
35
(v)

1
34

Question 9

9.

Find the number of prime factors of
4536

(i)

3
(ii)

0
(iii)

4
(iv)

1
(v)

2

Question 10

10.

Find the LCM of
{8,9}

(i)

72
(ii)

75
(iii)

71
(iv)

70
(v)

73

Question 11

11.

Find the L.C.M of
21
33

,

27
35

,

44
25

(i)

8319
(ii)

8316
(iii)

8314
(iv)

8315
(v)

8317

Question 12

12.

Find all common factors of 22 , 8 and 6

(i)

{1,2,8}
(ii)

{1,2}
(iii)

{1,2,22}
(iv)

{1,8}
(v)

{2,11}

Question 13

13.

Find the L.C.M of
15
27

,

36
45

(i)

180
7
(ii)

178
9
(iii)

182
9
(iv)

20
(v)

180
11

Question 14

14.

Find the number of prime factors of
70

(i)

3
(ii)

0
(iii)

2
(iv)

4
(v)

1

Question 15

15.

Find the prime factorization of
1150

(i)

2

✕

5

✕

23
(ii)

2

✕

5 2

✕

23
(iii)

2

✕

5 2

✕

26
(iv)

2

✕

5 3

✕

23
(v)

-1

✕

5 2

✕

23

Question 16

16.

Which of the following numbers is divisible by 4?

(i)

8500
(ii)

8502
(iii)

8501
(iv)

8498
(v)

8499

Question 17

17.

Find all common factors of 34 , 35 and 8

(i)

{1,7}
(ii)

{1}
(iii)

{17}
(iv)

{5}
(v)

{1,17}

Question 18

18.

The multiples of 11 =

(i)

{11,22,33,44,55,66,54,21}
(ii)

{11,33,44,55,54,65}
(iii)

{11,22,33,44,55,66}
(iv)

{11,22,33,44,55,66,34}
(v)

{11,22,33,44,55,21}

Question 19

19.

Find the LCM of
{8,12,6}

(i)

27
(ii)

24
(iii)

25
(iv)

23
(v)

21

Question 20

20.

Which of the following numbers is divisible by 9?

(i)

7415
(ii)

7416
(iii)

7414
(iv)

7417
(v)

7418

Question 21

21.

Find the H.C.F of
18
16

,

16
9

(i)

0
(ii)

1
72
(iii)

1
73
(iv)

1
36
(v)

1
71

Question 22

22.

Find the product of LCM and HCF of
{27,8,18}

(i)

217
(ii)

213
(iii)

216
(iv)

218
(v)

215

Question 23

23.

Which of the following numbers is divisible by 3?

(i)

2717
(ii)

2716
(iii)

2720
(iv)

2718
(v)

2719

Question 24

24.

Find the HCF of
{40,14,30}

(i)

5
(ii)

(-1)
(iii)

1
(iv)

2
(v)

3

Question 25

25.

Find the LCM of
{24,54}

(i)

215
(ii)

219
(iii)

217
(iv)

213
(v)

216

Assignment Key